I've had good luck with Dells from that point of view. I've bought 3 in the US, and two, at some point in their lifetimes, have needed some love from a technician (bad HD, and a cosmetic problem with a very new laptop that I wanted fixed because I spent quite a bit on it). Despite being very much not in the US anymore, they promptly dispatched people on site (in Innsbruck, Austria, and Padua, Italy) to fix the problems with no questions.
(Edit: by the way, most recent one was one of these - nice dev machine if you like Linux! http://www.dell.com/us/business/p/xps-13-linux/pd )